Age of high-grade gneisses south of Grand Lake, Newfoundland

K. L. Currie, O. van Breemen, P. A. Hunt, J. T. van Berkel

Atlantic Geology

... 89-1B, pp. 47-54. York, D. 1969. Least squares fitting of a straight line with correlated errors. Earth and Planetrary Science Letters, 5, pp...

A Comparative Study of Monotonic and Cyclic Injection Hydraulic Fracturing in Saturated Tight Rocks Under Triaxial Stress

Saurabh Goyal, Mark E. Curtis, Carl H. Sondergeld, Chandra S. Rai

Unconventional Resources Technology Conference (URTEC)

... the arrival times at the sensors (adjusted for the sensor delays) and a weighted least squares inversion method. Only those events which have clear...

The Connected Pore Space Paradigm: An Evaluation of the Effect of Crushing on Pore Volume and Structure

James Greene, Jorge Viamontes, Britt Hill

Unconventional Resources Technology Conference (URTEC)

... to the experimental data between closure and intrusion pressures using least-squares relative error regression (Figure 3). Between these pressures, confining pressure...

Recognition and Significance of Inherited Quartz Overgrowths in Quartz Arenites

Ivan D. Sanderson

Journal of Sedimentary Research (SEPM)

... with visible signs of truncation, were calculated. Results of the experiment are shown in Figure 8, a least-squares regression in which s/p values are plotted...

Morphology and Origin of an Erosion Surface Cut into the Bad Heart Formation During Major Sea-Level Change, Santonian of West-Central Alberta, Canada

A. Guy Plint, Roger G. Walker

Journal of Sedimentary Research (SEPM)

... the isopach data. A regular grid of data points was first set up by a weighted, moving least-squares analysis of the real data points in Figure 4. The grid...

Structural Analysis, and Geometrical Prediction for Change of Form with Depth, of Some Arabian Plains-Type Folds

W. Sugden

AAPG Bulletin

... of least squares can be applied to determine the best possible equation from the data of all the holes. Ideally, if data are thought to be well...

Carbonate Porosity Versus Depth: A Predictable Relation for South Florida

James W. Schmoker, Robert B. Halley

AAPG Bulletin

... can draw conclusions with basin-wide applicability. POROSITY VERSUS DEPTH Exponential Representation The least-squares exponential fit to the data...

Shallow Temperatures and Thermal Regime in the Hydrocarbon Province of Tierra del Fuego

Gary W. Zielinski , Peter M. Bruchhausen

AAPG Bulletin

... or more different depths are required) by least-squares fitting. Stepping through possible values of µ in discrete increments, a minimum root mean square...

Determination of the stable isotope composition and total dissolved solids of Athabasca oil sands reservoir porewater: Part 2. Characterization of McMurray Formation waters in the Suncor–Firebag field

Benjamin R. Cowie, Bruce James, Michael Nightingale, and Bernhard Mayer

AAPG Bulletin

... of the formation water. Care should be taken in interpretation of mixing lines generated by this method. Least-squares regression may not be entirely...

Extending Graphic Correlation to Many Dimensions: Stratigraphic Correlation as Constrained Optimization

William G. Kemple, Peter M. Sadler, David J. Strauss

Special Publications of SEPM

... the familiar least squares linear loose analogy with the evaluation of regression we suggest a a hypothetical aqueduct project The second part explains how...

Lithology Dependence of Porosity in Slope and Deep Marine Sediments

Michelle A. Kominz, Kyle Patterson, Danielle Odette

Journal of Sedimentary Research (SEPM)

... calculated for subsets of the data dominated by each lithology. Simple exponential fits were calculated using a least-squares approach (e.g., Snedecor...

Reflections on Geostatistics and Stochastic Modeling

D. E. Myers

AAPG Special Volumes

... maximum likelihood nor weighted least squares do a good of job of detecting the different components in a nested model (or even the need for one...

Estimating Thermal Conductivity in Sedimentary Basins Using Lithologic Data and Geophysical Well Logs (1)

FREDERIC BRIGAUD , DAVID S. CHAPMAN , and SYLVIE LE DOUARAN

AAPG Bulletin

... to various compositions. Using logarithms of conductivities, equation 7 becomes linear and least squares algorithms may be used. Table 2 lists the thermal...

CSPG/CSEG/CWLS GeoConvention 2011; - Abstracts, #90173 (2015).

Search and Discovery.com

Using Machine Learning Techniques for Mapping Dolomitic Facies in a Triple Porosity Calcareous Reservoir. Campeche Sound, Gulf of Mexico; #42472 (2019)

Antonio Cervantes-Velazquez, Jerson J. Tellez, Karelia La Marca, Kurt Marfurt

Search and Discovery.com

... attributes to estimate seismic facies through machine learning techniques such as Artificial Neural Net (ANN), Generative Topographic Maps (GTM), Weighted...

Abstract: Potential Debris Flow Study of the Hulu Kelang Area (Paper P3)

Zakaria Mohamad, Mohd. Sidi Daud, Syed Omar

Geological Society of Malaysia (GSM)

... of debris flow/landslid will be assigned a weighted value that is expected to be proportionate to the relative contribution to the hazard. Specificall...

Soyatal Formation and Related Strata: Onset of Sedimentation in the Cretaceous Foreland-Basin System, Central Mexico

Search and Discovery.com

Development of a Methodology for the Location of New Producer Wells from the Computational Modeling based on Streamline Simulation, by Olga Patricia Rueda, Miguel Jose Bernal, Elkin Rodolfo Santafe1, #40697 (2011)

Search and Discovery.com

40Ar/39Ar Geochronology of Lavas from the Central Plateau Member of Plateau Rhyolite with Implications for Magma Residence Times and Eruptive Reoccurrence Intervals, Yellowstone National Park

Todd A. Dallegge

Rocky Mountain Association of Geologists

.... 144, p. 274–285. Wendt, I. and C., Carl, 1991, The statistical distribution of the mean squared weighted deviation: Chemical Geology, v. 86, p. 275–285...

Pressure Maintenance by Gas Injection in the Opelika Field of Henderson County, Texas

T. W. Clay

East Texas Geological Society

... to the discovery of oil cycling and pressure maintenance operations continued and the current volumetrically weighted average pressure is approximately 3,000 psig...

Abstract: Enabling the Revolution in Seismic Digital Transformation

Stuart Darling

Southeast Asia Petroleum Exploration Society (SEAPEX)

..., seismic operations will never be the same. ION’s strategy is now weighted substantially towards driving maritime digitalization in both our core...

Abstract: Stratigraphic drilling of the Windsor Group: the Alton Gas occurrence

D. C. Carter

Atlantic Geology

... flow of natural gas into the well-bore. The gas flow was controlled by an annular blow-out preventer (BOP) and killed with a treated and weighted cement...

Porosity and Permeability of Oil Sands: Age and Depth: ABSTRACT

Kenneth P. McLaughlin

AAPG Bulletin

... and permeability averages are weighted or are only arithmetic means on thicknesses cored. The results verify existing belief that the depths from which...

Paleoecology, Stratigraphy, Production--Getting It All Together in Offshore Louisiana: ABSTRACT

Gerald C. Glaser, Andrew C. Jurasin

AAPG Bulletin

... constructed in 2,000-ft-thick depth intervals: (1) average weighted environment; (2) sand percentage, net sand, sandstone-shale ratio, and number...

Continuous Fracture Probability Determination as Applied to Monterey Formation: ABSTRACT

Greg Grove, Jeffery L. Whittaker

AAPG Bulletin

... indicator will give an individual probability of fracturing. These probabilities are then weighted and combined to give a composite fracture probability...